In a world of plenty, 1 billion peo ple are so poor, their lives are in danger. How to change that for good

THE DIRTIEST WORK:
Women in the Bihar state of India, one of the country's poorest, carry away the contents of latrines. Only members of the untouchable caste perform that low-paying task

We can banish extreme poverty in our generation--yet 8 million people die each year because they are too poor to survive. The trag edy is that with a little help, they could even thrive. In a bold new book, Jeffrey D. Sachs shows how we can make it happen

It is still midmorning in Malawi when we arrive at a small village, Nthandire, about an hour outside of Lilongwe, the capital. We have come over dirt roads, passing women and children walking barefoot with water jugs, wood for fuel, and other bundles. The midmorning temperature is sweltering. In this subsistence maize-growing...